1.

A bar magnet has a length 8 cm. The magnetic field at a point at a distance 3 cm from the centre in the broad side-on position is found to be\[4\times {{10}^{-6}}T\]. The pole strength of the magnet is.

A. \[6\times {{10}^{-5}}Am\]
B. \[5\times {{10}^{-5}}Am\]
C. \[2\times {{10}^{-4}}Am\]
D. \[3\times {{10}^{-4}}Am\]
Answer» B. \[5\times {{10}^{-5}}Am\]


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